Silicon chip 1.5kW Induction Motor Speed Controller Kit

(Silicon Chip Magazine August ‘13) This Induction Motor Speed Controller is suitable for motors up to 1.5kW (2HP) and can be used to control speed over a wide range. It will save big dollars with swimming pool pumps and will be great for running machinery at different speeds. Even better, it will control 3-phase motors as well!
Important Note For Kit Buyers:
This product is supplied in component form and requires soldering, drilling, and assembly. We recommend users are familiar with at least basic electronic principles and have the ability to solder.
Features

• Controls single-phase or 3-phase induction motors
• Runs from a single-phase 230VAC, 10A power point
• Over-current, over-temperature, under-voltage, over-voltage and short circuit protection
• EMI (electromagnetic interference) filtering for reduced radio interference
• Inrush current limiting
• Isolated control circuitry for safety
• Adjustable speed ramp up/down
• Pool pump mode
• Tool spin-up mode
• Can run 3-phase motors in either direction
• Optional external speed control pot with run, reverse and emergency stop switches
• Motor run/ramping and reverse indicator LEDs
• Fault indicator LED
• Open collector output provides either fault or up-to-speed indication

Why buy an Altronics Kit?
Altronics kits are premium do-it-yourself projects designed to be assembled with ease. However, basic electronics knowledge and soldering skills are essential to construct our kits. A difficulty rating is provided to help determine if your ability is sufficient to build the kit project. Please note, once assembly has been commenced we are unable to honor any warranty claims. Please see the full details

Specifications

• Motor power: up to 1.5kW (2 horsepower)
• Maximum output voltage (single or 3-phase motor): ~230V RMS
• Continuous output current: 8.5A RMS (single-phase), 5A RMS (3-phase)
• Short-term overload current: 13A RMS (single-phase), 7.5A RMS (3-phase)
• Switching frequency: 16kHz
• Quiescent power: 28W
• Speed ramp period adjustment: 1-30s to full speed
• Continuous input current: up to 8.7A RMS
• Speed control range: 1-100% or 1-150% (0.5Hz to 50Hz or 75Hz) in 0.05Hz steps
• Efficiency: up to 96%
• Speed control signal: 0-3.3V
• Up-to-speed/fault output sink: 12V/200mA